Naval leader (1809–1870) who headed the Union Navy's ordnance department during the Civil War and developed a number of guns and cannons. Original 2.5 x 4 carte-de-visite bust portrait of Dahlgren in uniform, by Brady, signed at the bottom of the image in black ink, “R. Admiral Dahlgren, Chief of Bur. of Ordnance, U.S. Navy, 1868.” In fine condition, with a couple slight bends and creases, and silvering to dark areas of the image. RR Auction COA.
